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Security Bulletin: IBM Connect:Direct for UNIX is Vulnerable to a Privilege Escalation Attack via its ndmauth modules

Security Bulletin


Summary

IBM Sterling Connect:Direct for UNIX could allow a user who is authorized for limited system privileges to attack through the ndmauth modules taking advantage of a buffer overflow vulnerability to manipulate CD UNIX and obtain root privileges.

Vulnerability Details

CVEID:   CVE-2020-4587
DESCRIPTION:   IBM Sterling Connect:Direct for UNIX is vulnerable to a stack based buffer ovreflow, caused by improper bounds checking. A local attacker could manipulate CD UNIX to obtain root provileges.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/184578 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Connect:Direct for UNIX6.1.0
IBM Connect:Direct for UNIX6.0.0
IBM Sterling Connect:Direct for UNIX4.3.0
IBM Sterling Connect:Direct for UNIX4.2.0

Remediation/Fixes

V.R.M.F APARRemediation/First Fix
6.1.0IT33840Apply 6.1.0.0.iFix028, available in cumulative iFix031 on Fix Central
6.0.0IT33840Apply 6.0.0.2.iFix057, available in cumulative iFix060 on Fix Central
4.3.0IT33840Apply 4.3.0.1.iFix062, available in cumulative iFix063 on Fix Central
4.2.0IT33840Apply 4.2.0.5.iFix045, available on Fix Central

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

This vulnerability was reported to IBM by Sabine Degen

Change History

21 Aug 2020: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
21 August 2020

UID

ibm16320317

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